There are two ways to boost muscle size: increase the size of the existing fibers or increase the number of fibers. Intense weight training encourages the addition of muscle cells through the repair process, and many supplements help plump up the size of existing muscle cells by filling them up with beneficial fluids and nutrients. To take advantage of these growth mechanisms, consider adding the following supplements to your pre-workout regimen.

Take this to increase blood flow. This trademarked ingredient is a specific form of arginine (arginine inositol silicate). The Nitrosigine version is stabilized to increase levels better than supplemental arginine HCl.

TAURINE

Taurine is an amino acid known to help prevent muscle fatigue, but it also supports elevated mood. Some studies have shown that taurine improves left ventrical function.